You are off duty at a park when you witness an apparently healthy 12-year-old child suddenly collapse. there are no bystanders around and your mobile phone is in your car. after confirming that the child is in cardiac arrest, you should: select one:
a. perform chest compressions only until a bystander arrives.
b. call 9-1-1 and then return to begin cpr on the child.
c. perform cpr for 2 minutes and then call 9-1-1.
d. deliver five rescue breaths before starting chest compressions

B since emergency services are more experienced and doing cpr might just save the kid between the time you call and the police arrive

texas governor sam houston opposed secession, but was unable to prevent it. in this speech, given prior to lincoln's election, he presents the argument that slavery would be safer within the united states than outside of it. it was a prescient argument, and one held by several other southern leaders.

have a good day pls vote me brailyest

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."